structure and properties of the magnetic powder of strontium hexaferrite SrFe12O19 obtained by crystallization of the oxide glass with additives of Fe-B
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Effect receiving modes, and heat treatment on the structure and properties of the magnetic powder of strontium hexaferrite презентация
Содержание
- 1. Effect receiving modes, and heat treatment on the structure and properties of the magnetic powder of strontium hexaferrite
- 2. Objective The aim of this study
- 3. To achieve this aim the following
- 4. Сomminution SAND planetary mill was used
- 5. The hysteresis loop of
- 6. Oxide glass crystallization method obtained submicrocrystalline
- 7. Thank you for attention!
Objective The aim of this study was to investigate the magnetic properties of hexaferrite powders SrFe12O19 strontium obtained by crystallization of the oxide glass, with the addition of Fe-B.
Слайд 2Objective
The aim of this study was to investigate the magnetic properties
of hexaferrite powders SrFe12O19 strontium obtained by crystallization of the oxide glass, with the addition of Fe-B.
Слайд 3
To achieve this aim the following tasks:
Preparation of the alloy samples
of strontium hexaferrite composition of 95% SrFe12O19 and 5% Fe-B.
Testing methods of heat treatment;
The study of the magnetic properties of the samples after grinding;
Testing methods of heat treatment;
The study of the magnetic properties of the samples after grinding;
Tasks
Слайд 4
Сomminution
SAND planetary mill was used to prepare nanocrystalline powders of strontium
hexaferrite with the ability to use up to 4 sealable drums.
Measurements of the magnetic properties
Measurement of the hysteresis properties of the samples is carried out at room temperature for gisterezisgrafe using microwebermeter F192.
Pressing
Was conducted on "Hydraulic press" install at 60 kg / cm 2 (pre-powder in the mold magnetized in a magnetic field).
Experimental technique
Слайд 5
The hysteresis loop of strontium hexaferrite and strontium hexaferrite with additions
of iron boride.
Слайд 6
Oxide glass crystallization method obtained submicrocrystalline rapidly quenched alloys and amorphous
structure.
It is shown that vitrified grinding in distilled water, compared to grinding in toluene resulted in a slight decrease in the coercive force (from 9 to kilooersted 8,2 kilooersted) and increase residual induction (from 0,75 kilogauss to 1,25 kilogauss, respectively.
After annealing at presszagotovki 1050 C at 30 min following magnetic properties obtained
It is shown that vitrified grinding in distilled water, compared to grinding in toluene resulted in a slight decrease in the coercive force (from 9 to kilooersted 8,2 kilooersted) and increase residual induction (from 0,75 kilogauss to 1,25 kilogauss, respectively.
After annealing at presszagotovki 1050 C at 30 min following magnetic properties obtained
Conclusions.
